﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp8
{
    class Program
    {
        static void Main(string[] args)
        {
            Student stu = new Student();
            stu.num = "000020";
            stu.num = "陈晓婷";
            stu.sex = "女";
            stu.age = 19;
            stu.SayHi();
        }
    }
}
